cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
2962
Views
0
Helpful
2
Replies
Sultanov_Gafur
Beginner

PPTP dialin server in ASR1001 question.

AFAIK ASR routers does not support PPTP tunnel termination as stated in configuration guide, but as I see in CLI

BRAS1#sh vpdn sess

%No active L2TP tunnels

%No active PPTP tunnels

BRAS1#sh vpdn group-select def

Default VPDN Group      Protocol

L2TP-IPsec               l2tp

L2TP-IPsec               pptp

!

vpdn-group L2TP-IPsec

! Default L2TP VPDN group

! Default PPTP VPDN group

accept-dialin

When i try to establish connection :

Sep 28 16:59:27.781: VPDN Received L2TUN socket message Incoming

Sep 28 16:59:27.781: VPDN uid:14 L2TUN socket session accept requested

Sep 28 16:59:27.781: VPDN uid:14 Setting up dataplane for L2-L2, no idb

Sep 28 16:59:27.781: VPDN Received L2TUN socket message Connected

Sep 28 16:59:27.781: VPDN uid:14 VPDN session up

but somehow

BRAS1#

Sep 28 16:59:49.933: VPDN uid:14 disconnect (AAA) IETF: 9/nas-error Ascend: 24/PPP LCP Fail

Sep 28 16:59:49.933: VPDN Unknown vpdn syslog error due to AAA disconnect code 24

Sep 28 16:59:49.933: VPDN uid:14 vpdn shutdown session, result=2, error=6, vendor_err=0, syslog_error_code=0, syslog_key_type=1

Sep 28 16:59:49.933: VPDN uid:14 VPDN/AAA: accounting stop sent

Sep 28 16:59:49.933: VPDN Received L2TUN socket message Disc

Sep 28 16:59:49.933: VPDN Failed to get session from socket handle 75000008

Can anybody explain this behavior?

Does it mean that Cisco just programably cut of the PPTP functionality?

1 ACCEPTED SOLUTION

Accepted Solutions
Manuel Rodriguez
Cisco Employee

Hello Sultanov,

As you well stated, PPTP termination is not supported in ASR platform.

My opinion is that the CLI commands and behavior you see are a consequence of code remaining in the IOS-XE version you are running. Most likely, since the feature is not supported, it wasn't tested and this remaining were not notice.

IOS-XE has a different structure than IOS. It inheritances some things form IOS but there are more other things that need to be implemented for a protocol to work properly.

Since it is not supported, even if you are able to bring a PPTP tunnel up on an ASR, if you face any issue with that deployment, it will not be supported by TAC or development teams.

Hopefuly this provides an answer to your concerns.

Best regards.

View solution in original post

2 REPLIES 2
Manuel Rodriguez
Cisco Employee

Hello Sultanov,

As you well stated, PPTP termination is not supported in ASR platform.

My opinion is that the CLI commands and behavior you see are a consequence of code remaining in the IOS-XE version you are running. Most likely, since the feature is not supported, it wasn't tested and this remaining were not notice.

IOS-XE has a different structure than IOS. It inheritances some things form IOS but there are more other things that need to be implemented for a protocol to work properly.

Since it is not supported, even if you are able to bring a PPTP tunnel up on an ASR, if you face any issue with that deployment, it will not be supported by TAC or development teams.

Hopefuly this provides an answer to your concerns.

Best regards.

View solution in original post

thank you for your reply

Content for Community-Ad